Question

if two lines intersect,do they always
intersect at right angle​

Answer 1

Answer:

No it's not necessary.

They can intersect and form any valid angle.

Answer 2

Answer:

Step-by-step explanation:

If two lines intersect do they always intersect at right angles

The lines are not intersecting each other at right angles. If two lines are perpendicular to the same line, they are parallel to each other and will never intersect.